Scraper for coating perovskite solar cell

Abstract

The utility model relates to the technical field of coating machines, in particular to a scraper for coating a perovskite solar cell, which comprises a coating machine, straight grooves are symmetrically arranged at the top of the coating machine, a support is slidably connected in the straight grooves, a scraper is slidably connected at the top end of the support, a moving groove is arranged in the middle of the top of the coating machine, and the moving groove is arranged in the middle of the top of the coating machine. The interior of the moving groove is slidably connected with a supporting rod, the top of the supporting rod is fixedly connected with a clamping plate, the bottom of the supporting rod is connected with a fixing sleeve in a pluggable mode, the exterior of the fixing sleeve is fixedly connected with a guide plate, the interior of the coating machine is fixedly connected with a frame, and the inner side wall of the frame is provided with a limiting groove. By means of the design of the movable plate and the clamping plate, the surface of the scraper can be rapidly cleaned in a friction mode, and the overall practicability is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of coating machine technology, specifically to a doctor blade for coating perovskite solar cells. Background Technology

[0002] Perovskite solar cells are solar cells that utilize perovskite-type organometal halide semiconductors as light-absorbing materials. They belong to the third generation of solar cells and are also known as new-concept solar cells. Perovskite, as a synthetic material, has shone brightly in the photovoltaic power generation field due to its excellent performance, low cost, and huge commercial value. In recent years, top global research institutions and large multinational corporations, such as Oxford University, Panasonic, Sharp, and Toshiba, have invested significant resources to achieve mass production as soon as possible. The production process of perovskite solar cells requires a coating machine. This machine is used to uniformly coat the positive / negative current collectors with a slurry that has good stability, viscosity, and fluidity, and then dries the solvent in the slurry. This process is crucial for the capacity, consistency, and safety of perovskite solar cells.

[0003] The coating blade, an important component of the coating machine, needs to be cleaned after each coating before the next product can be coated. Therefore, cleaning the coating machine is very important. Most existing coating machine cleaning devices use water to rinse, which is not easy to clean oily coatings and requires wiping dry, which is very time-consuming.

[0004] Therefore, it is particularly important to improve existing doctor blades used for coating perovskite solar cells, design a new type of doctor blade for coating perovskite solar cells to solve the above-mentioned technical defects, and improve the overall practicality of doctor blades used for coating perovskite solar cells. Utility Model Content

[0005] The purpose of this invention is to provide a scraper for coating perovskite solar cells. Through the overall design, the connecting plate is controlled to move, and then the stop block reciprocates inside the V-groove, so as to realize the friction cleaning of the clamping plate on the outside of the scraper, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A scraper for coating perovskite solar cells includes a coating machine. The top of the coating machine has symmetrically formed straight grooves. A bracket is slidably connected inside the straight grooves. A scraper is slidably connected to the top of the bracket. A movable groove is formed in the middle of the top of the coating machine. A support rod is slidably connected inside the movable groove. A clamping plate is fixedly connected to the top of the support rod. A fixing sleeve is inserted and pulled into the bottom of the support rod. A guide plate is fixedly connected to the outside of the fixing sleeve.

[0008] As a preferred embodiment of this utility model, the coating machine is internally fixedly connected to a frame, a limiting groove is formed on the inner side wall of the frame, a connecting plate is slidably connected inside the limiting groove, sliders are fixedly connected at both ends of the connecting plate at positions corresponding to the limiting groove, and a fixing plate is fixedly connected to the bottom of the frame.

[0009] As a preferred embodiment of this utility model, the connecting plate has multiple sets of irregular grooves inside, the irregular grooves are designed in a V-shape, and the multiple sets of irregular grooves are distributed at equal intervals.

[0010] As a preferred embodiment of this utility model, the top of the frame is symmetrically fixedly connected with a mounting base, the guide plate extends to the outside of the mounting base, the bottom of the fixing sleeve is fixedly connected with a guide block, and the guide block extends into the interior of the irregular groove.

[0011] As a preferred embodiment of this utility model, the connecting plate is rotatably connected to a shaft, the top end of the shaft is fixedly connected to a linkage rod, the end of the linkage rod away from the shaft is fixedly connected to a stop block, the bottom of the connecting plate is fixedly connected to a track, and the stop block extends into the interior of the track.

[0012] As a preferred embodiment of this utility model, a sliding rod is slidably connected to the inner side wall of the clamping plate, a spring is sleeved on the outside of the sliding rod, an mounting plate is fixedly connected to the end of the sliding rod away from the clamping plate, a rubber sleeve is fixedly connected to the outside of the mounting plate, and Velcro is provided on the surface of the mounting plate.

[0013] As a preferred embodiment of this utility model, a U-shaped frame is fixedly connected to the inner side wall of the fixing sleeve, a clamping block is slidably connected inside the U-shaped frame, and an insert block is fixedly connected to the bottom end of the support rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In this utility model, by lowering the scraper into the interior of the clamping plate, the insertion shaft rotates while driving the linkage rod to move. The linkage rod drives the stop block to swing, squeezing the track, so that the connecting plate can make a predetermined linear movement inside the frame. At the same time, when the irregular groove moves, it will squeeze the guide block, so that the guide plate can move laterally, and the clamping plate can rub against the outside of the scraper.

[0016] 2. By attaching the cleaning cloth to the surface of the Velcro and tucking the four corners of the cleaning cloth into the inside of the rubber sleeve, the cleaning cloth is prevented from being subjected to excessive friction and shifting when the clamp moves. At the same time, the extension and contraction of the spring stores energy, ensuring that the mounting plate always wraps around the scraper. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the frame structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the connecting plate structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the clamping plate of this utility model.

[0021] In the diagram: 1. Coating machine; 2. Straight groove; 3. Support; 4. Scraper; 5. Moving groove; 6. Support rod; 7. Clamping plate; 701. Spring; 8. Fixing sleeve; 9. Guide plate; 10. Frame; 11. Connecting plate; 12. Fixing plate; 13. Irregular groove; 14. Guide block; 15. Linkage rod; 16. Stop block; 17. Track; 18. Mounting plate; 19. Rubber sleeve; 20. Velcro; 21. U-shaped frame; 22. Clamping block; 23. Insertion block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Example:

[0024] Please see Figures 1-4 This utility model provides a technical solution:

[0025] A scraper for coating perovskite solar cells includes a coating machine 1. The top of the coating machine 1 has symmetrically arranged straight grooves 2. A support 3 is slidably connected inside the straight grooves 2, and a scraper 4 is slidably connected to the top of the support 3. A movable groove 5 is formed in the middle of the top of the coating machine 1. A support rod 6 is slidably connected inside the movable groove 5. A clamping plate 7 is fixedly connected to the top of the support rod 6, and a fixing sleeve 8 is inserted and pulled to the bottom of the support rod 6. A guide plate 9 is fixedly connected to the outside of the fixing sleeve 8. By placing the solar cell on the top of the coating machine 1, and then controlling the power supply to connect to the support 3, the support 3 is moved above the solar cell. The scraper 4 then contacts the solar cell, and the reciprocating motion of the support 3 completes the work. When cleaning the scraper 4 is required, the support rod 6 is inserted into the fixing sleeve 8, causing the support rod 6 to drive the clamping plate 7 to be vertically fixed. The scraper 4 is lowered into the clamping plate 7, allowing the clamping plate 7 to wrap around the scraper 4. Then, the guide plate 9 is slid, allowing the support rod 6 to reciprocate within the movable groove 5, enabling the clamping plate 7 to clean both sides of the scraper 4.

[0026] Furthermore, in this embodiment, a frame 10 is fixedly connected inside the coating machine 1. A limiting groove is formed on the inner side wall of the frame 10. A connecting plate 11 is slidably connected inside the limiting groove. Sliders are fixedly connected at both ends of the connecting plate 11 at positions corresponding to the limiting groove. A fixing plate 12 is fixedly connected to the bottom of the frame 10. By moving the frame connecting plate 11 inside the frame 10, the limiting groove then limits the slider, so that the connecting plate 11 can make a predetermined linear movement inside the frame 10.

[0027] Furthermore, in this embodiment, the connecting plate 11 has multiple sets of irregular grooves 13 inside. The irregular grooves 13 are designed in a V-shape and are distributed at equal intervals. When the connecting plate 11 reciprocates, the irregular grooves 13 reciprocate synchronously.

[0028] Furthermore, in this embodiment, the top of the frame 10 is symmetrically fixedly connected with a mounting base, the guide plate 9 extends to the outside of the mounting base, the bottom of the fixing sleeve 8 is fixedly connected with a guide block 14, and the guide block 14 extends into the interior of the irregular groove 13. By passing the guide plate 9 through the interior of the two sets of mounting bases, the mounting base limits the guide plate 9 when it moves. At the same time, when the irregular groove 13 moves, it will squeeze the guide block 14 to realize the lateral movement of the guide plate 9.

[0029] Furthermore, in this embodiment, a shaft is rotatably connected inside the connecting plate 11, a linkage rod 15 is fixedly connected to the top of the shaft, a stop block 16 is fixedly connected to the end of the linkage rod 15 away from the shaft, and a track 17 is fixedly connected to the bottom of the connecting plate 11. The stop block 16 extends into the interior of the track 17. By connecting the bottom of the shaft to the motor, the shaft rotates while driving the linkage rod 15 to move. The linkage rod 15 drives the stop block 16 to swing, squeezing the track 17, thereby enabling the connecting plate 11 to slide inside the frame 10.

[0030] Furthermore, in this embodiment, a sliding rod is slidably connected to the inner side wall of the clamping plate 7, and a spring 701 is sleeved on the outside of the sliding rod. An mounting plate 18 is fixedly connected to the end of the sliding rod away from the clamping plate 7, and a rubber sleeve 19 is fixedly connected to the outside of the mounting plate 18. The surface of the mounting plate 18 is provided with Velcro 20. By attaching the cleaning cloth to the surface of the Velcro 20 and tucking the four corners of the cleaning cloth into the inside of the rubber sleeve 19, the cleaning cloth is prevented from being subjected to excessive friction and shifting when the clamping plate 7 moves. At the same time, the extension and retraction of the spring 701 stores energy, so that the mounting plate 18 always wraps the scraper 4.

[0031] Furthermore, in this embodiment, a U-shaped frame 21 is fixedly connected to the inner wall of the fixing sleeve 8, and a clamping block 22 is slidably connected inside the U-shaped frame 21. An insert block 23 is fixedly connected to the bottom end of the support rod 6. When the support rod 6 is rotated, the insert block 23 will press the clamping block 22, and the clamping block 22 will retract into the interior of the U-shaped frame 21. Then, the fixing sleeve 8 will release the fixation of the support rod 6, making it easy to disassemble.

[0032] In this embodiment, the specific implementation scenario is as follows: The solar cell is placed on top of the coating machine 1. Then, the power supply is connected to the support 3, and the support 3 is moved above the solar cell. The scraper 4 then contacts the solar cell, and the reciprocating motion of the support 3 completes the work. When cleaning the scraper 4 is required, the support rod 6 is inserted into the fixing sleeve 8, causing the clamping plate 7 to be vertically fixed. The scraper 4 is lowered into the clamping plate 7, allowing the clamping plate 7 to enclose the scraper 4. The bottom of the insertion shaft is connected to the motor, and the insertion shaft rotates while driving the linkage rod 15 to move. The linkage rod 15 causes the stop block 16 to swing, squeezing the track 17. The limiting groove then limits the slider. Limiting the movement allows the connecting plate 11 to make a predetermined linear movement inside the frame 10, while the irregular groove 13 makes a reciprocating movement simultaneously. At the same time, when the irregular groove 13 moves, it will squeeze the guide block 14, so that the guide plate 9 moves laterally. By attaching the cleaning cloth to the surface of the Velcro 20 and tucking the four corners of the cleaning cloth into the rubber sleeve 19, the cleaning cloth is prevented from being subjected to excessive friction and shifting when the clamping plate 7 moves. At the same time, the extension and retraction of the spring 701 stores energy, so that the mounting plate 18 always wraps the scraper 4. The support rod 6 rotates, and then the insert block 23 will squeeze the clamping block 22. The clamping block 22 will retract into the U-shaped frame 21, and then the fixing sleeve 8 will release the fixation of the support rod 6 for easy disassembly.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A doctor blade for coating perovskite solar cells, comprising a coating machine (1), characterized in that: The top of the coating machine (1) is symmetrically provided with straight grooves (2), and a bracket (3) is slidably connected inside the straight groove (2). A scraper (4) is slidably connected to the top of the bracket (3). A moving groove (5) is provided in the middle of the top of the coating machine (1). A support rod (6) is slidably connected inside the moving groove (5). A clamping plate (7) is fixedly connected to the top of the support rod (6). A fixing sleeve (8) is inserted and pulled to the bottom of the support rod (6). A guide plate (9) is fixedly connected to the outside of the fixing sleeve (8).

2. The doctor blade for coating perovskite solar cells according to claim 1, characterized in that: The coating machine (1) is internally fixedly connected to a frame (10). A limiting groove is provided on the inner side wall of the frame (10). A connecting plate (11) is slidably connected inside the limiting groove. Slider blocks are fixedly connected at both ends of the connecting plate (11) at positions corresponding to the limiting groove. A fixing plate (12) is fixedly connected to the bottom of the frame (10).

3. The doctor blade for coating perovskite solar cells according to claim 2, characterized in that: The connecting plate (11) has multiple sets of irregular grooves (13) inside. The irregular grooves (13) are designed in a V-shape and are distributed at equal intervals.

4. The doctor blade for coating perovskite solar cells according to claim 2, characterized in that: The top of the frame (10) is symmetrically fixedly connected to a mounting base, the guide plate (9) extends to the outside of the mounting base, and the bottom of the fixing sleeve (8) is fixedly connected to a guide block (14), which extends into the interior of the irregular groove (13).

5. The doctor blade for coating perovskite solar cells according to claim 2, characterized in that: The connecting plate (11) is rotatably connected to a shaft, and a linkage rod (15) is fixedly connected to the top end of the shaft. A stop block (16) is fixedly connected to the end of the linkage rod (15) away from the shaft. A track (17) is fixedly connected to the bottom of the connecting plate (11), and the stop block (16) extends into the interior of the track (17).

6. The doctor blade for coating perovskite solar cells according to claim 1, characterized in that: A sliding rod is slidably connected to the inner wall of the clamp (7), and a spring (701) is sleeved on the outside of the sliding rod. An installation plate (18) is fixedly connected to the end of the sliding rod away from the clamp (7). A rubber sleeve (19) is fixedly connected to the outside of the installation plate (18), and Velcro (20) is provided on the surface of the installation plate (18).

7. The doctor blade for coating perovskite solar cells according to claim 1, characterized in that: A U-shaped frame (21) is fixedly connected to the inner wall of the fixed sleeve (8), and a clamping block (22) is slidably connected inside the U-shaped frame (21). An insert block (23) is fixedly connected to the bottom end of the support rod (6).

Images